SN4 ""

No	Pattern	Freq
1	[adj] [noun] it is [adv] that	6
2	[prep] [noun] it is [adv] that	5
3	[prep] [noun] it is [adv] that	5
4	[noun] [conj] it is [adv] that	12
5	[noun] [coord] it is [adv] that	11
6	[noun] and it is [adv] that	10
7	[noun] and it is [adv] that	10
8	[noun] it is [adv] [adj] that	173
9	[noun] it is [adv] [adj] that	173
10	[noun] it is [adv] surprising that	68
11	[noun] it is [adv] surprising that	68
12	[noun] it is [adv] [verb] that	49
13	[noun] it is [adv] [vb pp] that	49
14	[noun] it is [adv] important that	16
15	[noun] it is [adv] important that	16
16	[noun] it is [adv] likely that	14
17	[noun] it is [adv] likely that	14
18	[noun] it is [adv] unlikely that	7
19	[noun] it is [adv] unlikely that	7
20	[noun] it is [adv] clear that	6
21	[noun] it is [adv] certain that	6
22	[noun] it is [adv] known that	6
23	[noun] it is [adv] accept that	6
24	[noun] it is [adv] certain that	6
25	[noun] it is [adv] know that	6
26	[noun] it is [adv] clear that	6
27	[noun] it is [adv] accepted that	6
28	[noun] it is [adv] obvious that	5
29	[noun] it is [adv] assumed that	5
30	[noun] it is [adv] assume that	5